1,2-Difluorotetrachloroethane Back Catalog number: 71057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 51058 ASTM D-4815 Calibration Mix #1 Price on request EPA-1668IS Internal Standard Stock Solution, 1.2ml, nonane Price on request 675872 2,4'-Dichlorobenzophenone, 250mg Price on request